the dac8574 is a low-power quad channel 16-bit buffered voltage output dac. its on-chip precision output amplifier allows rail-to-rail output swing to be achieved. the dac8574 utilizes an ic compatible two wire serial interface supporting high-speed interface mode with address support of up to sixteen dac8574s for a total of 64 channels on the bus. the dac8574 requires an external reference voltage to set the output range of the dac. the dac8574 incorporates a power-on-reset circuit that ensures that the dac output powers up at zero volts and remains there until a valid write takes place to the device. the dac8574 contains a power-down feature accessed via the internal control register that reduces the current consumption of the device to 200na at 5v. view all in datasheet